database-migrations
by affaan-mThe database-migrations skill helps backend teams plan safe schema changes, data backfills, rollbacks, and zero-downtime deploys for PostgreSQL, MySQL, and common ORMs. Use it for production-safe database-migrations guide work when you need clear steps, fewer locks, and reversible changes.
This skill scores 78/100, which means it is worth listing for Agent Skills Finder: it gives agents a clear migration-focused workflow and enough operational guidance to reduce guesswork versus a generic prompt, though users should still expect some limitations from the lack of supporting scripts or reference files.
- Clear activation intent for migration tasks such as schema changes, data backfills, rollbacks, and zero-downtime planning.
- Substantial workflow content with safety principles and checklist-style guidance that should help an agent execute more reliably.
- Covers multiple common stacks and ORMs (PostgreSQL, MySQL, Prisma, Drizzle, Kysely, Django, TypeORM, golang-migrate), improving reuse across projects.
- No install command, scripts, references, or companion files were found, so adoption depends mainly on the written SKILL.md.
- The repository evidence shows strong guidance text but limited executable scaffolding, so agents may still need manual interpretation for tool-specific implementation.
Overview of database-migrations skill
What database-migrations is for
The database-migrations skill helps you plan and write safe database changes for backend systems. It is most useful when you need to ship schema updates, backfills, rollbacks, or zero-downtime changes without guessing at the order of operations.
Who should use it
Use the database-migrations skill if you work on backend development with PostgreSQL, MySQL, or common migration frameworks like Prisma, Drizzle, Kysely, Django, TypeORM, or golang-migrate. It is a good fit when production safety matters more than quick one-off edits.
What makes it different
This database-migrations skill is opinionated about production discipline: migrations should be forward-only, schema and data changes should stay separate, and changes should be tested against realistic data. That makes it better than a generic prompt when you need fewer locks, cleaner rollbacks, and clearer deployment steps.
How to Use database-migrations skill
Install and activate it
Install the database-migrations skill with:
npx skills add affaan-m/everything-claude-code --skill database-migrations
Activate it when your task involves a migration decision, not after the schema is already broken. The best time to use database-migrations install thinking is before you write SQL, generate ORM migrations, or plan a deploy sequence.
Give the skill the right input
For strong database-migrations usage, provide:
- the database engine and version
- the table sizes and whether the table is hot
- the exact schema change you want
- whether the change must be zero-downtime
- whether you need rollback support
- the ORM or migration tool in use
A weak request is: “make this migration safe.”
A better request is: “I need to add a nullable status column to a 40M-row PostgreSQL table used by a web app with no maintenance window. Suggest the safest migration steps and rollback plan.”
Read the right files first
Start with SKILL.md, then inspect any supporting repo guidance such as README.md, AGENTS.md, metadata.json, and folders like rules/, resources/, references/, or scripts/ if they exist. For this repo, SKILL.md is the main source of truth, so use it to extract the checklist, activation triggers, and database-specific patterns before adapting anything to your stack.
Use a migration-first workflow
A practical database-migrations guide usually follows this order:
- define the desired end state
- separate schema changes from data backfills
- check whether the operation can be online
- write forward and rollback steps
- test on production-like data
- deploy in stages if needed
That workflow matters because the skill is designed to reduce lock risk, destructive rollbacks, and “worked in staging” surprises.
database-migrations skill FAQ
Is database-migrations only for PostgreSQL?
No. The database-migrations skill covers PostgreSQL and MySQL, and it also fits workflows built around popular ORMs and migration tools. The exact SQL patterns will change by engine, but the safety model stays the same.
Is this better than a normal prompt?
Yes, when the work has real production consequences. A normal prompt may suggest a migration shape, but the database-migrations skill gives you a stronger guardrail for locking, reversibility, and separation of schema and data work.
Can beginners use it?
Yes, if they can describe the change clearly. Beginners get the most value when they include the table, data volume, and downtime tolerance instead of asking for a generic migration template.
When should I not use it?
Do not use it as a substitute for application-specific validation or database-engine documentation. If your task is a one-line local prototype with no production data, the skill may be more process than you need.
How to Improve database-migrations skill
Provide deployment constraints up front
The quality of database-migrations usage improves when you state whether the app can tolerate locks, whether deploys are blue-green or rolling, and whether writes continue during the change. Those constraints determine if the migration can be online or must be split into phases.
Include volume and risk details
The skill is much more useful when you mention row counts, index sizes, foreign keys, and whether a table is write-heavy. These details help avoid common failure modes such as adding NOT NULL without a default, building indexes inline, or mixing a backfill with schema changes.
Ask for a concrete migration plan
Instead of asking for “best practices,” ask for the exact plan you want: SQL, rollback path, validation checks, and deployment order. If the first answer is too generic, iterate by adding your current schema, the target schema, and any ORM-specific constraints from Prisma, Drizzle, Kysely, Django, TypeORM, or golang-migrate.
Treat the first output as a draft
Use the first result to confirm safety assumptions, then refine for your real environment. The best improvements usually come from tightening the data shape, naming the irreversible parts, and asking the database-migrations skill to optimize for either safety, speed, or minimal locking—not all three at once.